21534716

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 48607776

約数和(自身を除く): 27073060

約数列:

[1, 2, 4, 7, 14, 17, 23, 28, 34, 46, 49, 68, 92, 98, 119, 161, 196, 238, 281, 322, 391, 476, 562, 644, 782, 833, 1124, 1127, 1564, 1666, 1967, 2254, 2737, 3332, 3934, 4508, 4777, 5474, 6463, 7868, 9554, 10948, 12926, 13769, 19108, 19159, 25852, 27538, 33439, 38318, 45241, 55076, 66878, 76636, 90482, 109871, 133756, 180964, 219742, 234073, 316687, 439484, 468146, 633374, 769097, 936292, 1266748, 1538194, 3076388, 5383679, 10767358, 21534716]

約数ペア:

[(1, 21534716), (2, 10767358), (4, 5383679), (7, 3076388), (14, 1538194), (17, 1266748), (23, 936292), (28, 769097), (34, 633374), (46, 468146), (49, 439484), (68, 316687), (92, 234073), (98, 219742), (119, 180964), (161, 133756), (196, 109871), (238, 90482), (281, 76636), (322, 66878), (391, 55076), (476, 45241), (562, 38318), (644, 33439), (782, 27538), (833, 25852), (1124, 19159), (1127, 19108), (1564, 13769), (1666, 12926), (1967, 10948), (2254, 9554), (2737, 7868), (3332, 6463), (3934, 5474), (4508, 4777)]